//
//  AppDelegate.swift
//  新浪微博
//
//  Created by 周冰烽 on 2016/12/30.
//  Copyright © 2016年 周冰烽. All rights reserved.
//

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    
    var window: UIWindow?
    
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        window = UIWindow()
        window?.backgroundColor = UIColor.white
        window?.rootViewController = DLMainViewController()
        window?.makeKeyAndVisible()
        loadAppInfo()
        return true
    }
    
    
    
}
extension AppDelegate {
    fileprivate func loadAppInfo() {
        //1.模拟异步
        DispatchQueue.global().async {
            //1> url
            let url = Bundle.main.url(forResource: "main.json", withExtension: nil)
            //2> data
            let data = NSData(contentsOf: url!)
            //3>写入磁盘
            let docDir = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
            let jsonPath = (docDir as NSString).appendingPathComponent("main.json")
            data?.write(toFile: jsonPath, atomically: true)
            print("应用程序加载完毕\(jsonPath)")
        }
    }
}
